TrantaLocked I tried getting more distance, but that didnt help, it made it worse. My monitor is now at arms length, which is much less straining. It depends on your eyes, which distance is less straining i think.
League of legends is pretty fast scrolling. Do you have strain with fast shooters too? I actually had strain on movement on the LG, even on SDR movies, it uses a hard strobing effect for overdrive i think. Its gone with the Syncmaster, but i didnt try games yet, might need 2 weeks for that.
Yes your eyes may have gotten worse, but only way you can test that is trying another screen. You could try a 360hz panel, if you are able to get 360fps, which my PC cant 😃
How would you describe your eye strain? Is it the same eye strain the other 2 screens gave you? Are you using eye drops? I get sometimes strain or even pain which is gone by using 1-2 eye drops in each eye. Sometimes it is just too bright and the strain is gone when lowering brightness/contrast. But these 2 strains feels different for me.
EDIT: I do a lot of reading, only a little bit of watching movies and atm no games. Even if i do play games, it is only after working for 8+ hours. But they strain is not "reading strain". I can read perfectly fine i think. I use darkreader on firefox and changed the font to "system-ui", reading is easy with this font. Its light/brightness/flicker strain, pretty sure. I have to use eye drops now, which i never did 6 months ago and never had any eye pain/strain when i used my normal monitor settings on my old setup. And i am pretty sure i have white LED-strain with newer screens.